Toadflax Stem Weevil vs Tumbling Flower Beetle

Side-by-side species comparison

Attribute Toadflax Stem Weevil Tumbling Flower Beetle
Scientific Name Mecinus janthinus Mordella aculeata
Order Coleoptera Coleoptera
Family Curculionidae Mordellidae
Size 3-4 mm 3-6 mm
Habitat Grasslands Meadows
Diet Herbivores Pollen Feeders
Regions Europe Europe, North America
Conservation Least Concern Least Concern

Toadflax Stem Weevil

A dark metallic blue-purple weevil that feeds on toadflax species. Successfully used as a biological control agent for invasive Dalmatian toadflax in North America.

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Did You Know?

Released in North America as biological control, where it has successfully suppressed invasive Dalmatian toadflax.

Tumbling Flower Beetle

A small, humpbacked beetle that tumbles erratically when disturbed. Adults are commonly found on flowers where they feed on pollen.

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Did You Know?

Their pointed abdomen extends beyond the elytra, giving them a distinctive wedge shape.